Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Yrzhe/claude-skills --skill social-sandboxgit clone --depth 1 https://github.com/Yrzhe/claude-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/yrzhe/claude-skills/social-sandbox)<a href="https://agentmods.dev/skills/yrzhe/claude-skills/social-sandbox"><img src="https://agentmods.dev/badge/skills/yrzhe/claude-skills/social-sandbox/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/yrzhe/claude-skills/social-sandbox"><img src="https://agentmods.dev/badge/skills/yrzhe/claude-skills/social-sandbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00097 | $0.00833 |
| Opus 5 | $0.00048 | $0.00417 |
| Sonnet 5 | $0.00019 | $0.00167 |
| Haiku 4.5 | $0.00010 | $0.00083 |
Grade A, and why
social-sandbox scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Social Sandbox
Thin scenario wrapper for counterfactual social simulation. Differs from product-feedback (scores products) and vote-predict (categorical votes) — this produces open-ended qualitative narratives from the panel, then clusters them.
Recipe
import sys
sys.path.insert(0, str(__import__('pathlib').Path.home() / '.claude/skills/persona-sim'))
from lib import sampler
from lib.sim_engine import SYSTEM_PROMPT, _persona_card
from lib.llm_router import generate
from concurrent.futures import ThreadPoolExecutor
# 1. Sample diverse panel (wider demographic spread than product-feedback)
panel = sampler.sample_personas(n=50, source="nemotron_usa", mode="stream")
# 2. Design the scenario — use past tense as if it already happened
scenario = """
Congress has just passed a law raising the federal minimum wage to $22/hour
nationwide, effective in 6 months. You've seen the news today.
"""
# 3. Ask each persona: immediate reaction + 6-month expectation + what they plan to do
def probe(persona):
task = (f"{scenario}\n\n"
"Respond as yourself, in 3 sentences:\n"
"(1) Your immediate emotional reaction.\n"
"(2) What you expect to happen in your life over 6 months.\n"
"(3) What (if anything) you plan to do in response.")
return generate(system=SYSTEM_PROMPT, persona_card=_persona_card(persona),
task=task, tier="default", max_tokens=400)
with ThreadPoolExecutor(max_workers=8) as ex:
narratives = list(ex.map(probe, panel))
# 4. Cluster the narratives (use Sonnet for this, not Haiku)
# Pass the 50 narratives + panel demographics to Sonnet:
# "Identify 3-5 distinct reaction archetypes. For each: label, % of panel, key demographic correlates,
# sample quote."
What this skill is for
- Hypothesis generation before designing a real survey
- Finding dimensions of disagreement you hadn't thought of
- Surfacing minority voices that demographic-only polling would miss
- Stress-testing messaging against diverse interpretations
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 78 lines · 97 tokens per session scan A d2f4d3cb507f
social-sandbox is a skill published in the GitHub repository Yrzhe/claude-skills (33 stars, last pushed 3mo ago), licensed MIT. It adds 97 tokens to every session and 833 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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